Weblogic Administrator
Weblogic Administrator Interview Questions and Answers
Q1. Application running fine but user facing issues. What is the approach to check the issue..
Check server logs, monitor system resources, analyze application performance, and troubleshoot network connectivity.
Check server logs for any errors or warnings that may be impacting user experience.
Monitor system resources such as CPU, memory, and disk usage to ensure they are not being maxed out.
Analyze application performance metrics to identify any bottlenecks or issues affecting user experience.
Troubleshoot network connectivity to ensure users can access the application ...read more
Q2. How to failover user session as part of load balance
User session failover can be achieved through session replication and load balancer configuration.
Implement session replication across multiple Weblogic servers
Configure load balancer to redirect user requests to available servers
Use clustering to ensure high availability of user sessions
Q3. What is architecture of weblogic application server
WebLogic Server architecture is a multi-tiered, distributed system designed for enterprise applications, supporting scalability and reliability.
WebLogic Server is built on a modular architecture, allowing components to be loaded as needed.
It consists of a domain, which is a logically related group of resources, including servers and applications.
The core components include Managed Servers, Admin Server, and Clusters for load balancing.
WebLogic supports various protocols like ...read more
Q4. How to clear the older log files... Linux command
Use the 'find' command to locate and delete older log files in Linux.
Use the 'find' command with the '-mtime' option to specify the number of days since the file was last modified.
Example: find /path/to/logs -type f -mtime +7 -exec rm {} \; will delete log files older than 7 days.
Q5. 1. Explain about SSL certificates
SSL certificates are digital certificates that authenticate the identity of a website and encrypt data sent to and from it.
SSL certificates use public key encryption to secure data transmission
They contain information about the website owner, domain name, and expiration date
SSL certificates can be obtained from trusted certificate authorities or self-signed
They are essential for secure online transactions and protecting sensitive information
Q6. What is cluster and advantages
A cluster is a group of servers that work together to provide high availability and scalability for applications.
Improves performance by distributing workload among multiple servers
Enhances reliability by providing failover support
Allows for easier management and maintenance of servers
Examples: Weblogic cluster, Hadoop cluster
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Q7. What is importance thread dump
Q8. 2. Explain patching
Patching refers to the process of updating software to fix bugs or security vulnerabilities.
Patching involves downloading and installing updates from the software vendor.
It is important to test patches before deploying them to ensure they do not cause any issues.
Patching should be done regularly to ensure software is up-to-date and secure.
Examples of patching include installing Windows updates or updating Java on a server.
Weblogic Administrator Jobs
Q9. 3. Explain Jdbc
JDBC stands for Java Database Connectivity. It is a Java API that allows Java programs to access databases.
JDBC provides a standard set of interfaces for accessing relational databases.
It allows Java programs to connect to a database, execute SQL queries, and retrieve results.
JDBC drivers are used to connect to different types of databases, such as Oracle, MySQL, and SQL Server.
JDBC is used in many Java-based applications, such as web applications and enterprise applications.
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